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1 terameter (Gm) = 1×1012 m
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1 gigameter (Gm) = 1×109 m
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1 megameter (Mm) = 1×106 m
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1 kilometer (km) = 1×103m
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1 decimeter (dm) = 1×10–1 m
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1 centimeter (cm) = 1×10–2 m
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1 millimeter (mm) = 1×10–3 m
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1 micrometer (μm) = 1×10–6 m
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1 nanometer (nm) = 1×10–9 m
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1 picometer (pm) = 1×10–12 m
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1 femtometer (fm) = 1×10–16 m
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